Master Microservices with Spring Boot and Spring Cloud - Step 12 – Connecting Currency Exchange Microservice with Zipkin

The video tutorial explains how to integrate Zipkin for tracing requests across microservices. It covers adding necessary dependencies, configuring distributed tracing with HTTP and RabbitMQ, and setting up sampling to manage performance. The tutorial demonstrates launching the currency exchange service, testing the tracing setup, and adding logging to track requests. The importance of unique IDs for tracing and the potential architecture involving RabbitMQ for reliability are highlighted.

What is the primary purpose of assigning a unique ID to each request in microservices?

• To reduce data size

• To improve performance

• To trace requests across multiple microservices

• To enhance security

Which framework is used to assign unique IDs to requests in the discussed architecture?

• Spring Cloud Sleuth

• Spring Security

• Spring Data JPA

• Spring Boot

What role does RabbitMQ play in the recommended architecture?

• It acts as a queue to prevent data loss when the tracing server is down

• It stores the tracing data permanently

• It replaces the tracing server

• It processes the tracing data

Why is sampling configuration important in distributed tracing?

• To trace every request for detailed analysis

• To reduce performance impact by tracing a percentage of requests

• To increase the speed of tracing

• To ensure all requests are logged

What does setting the sampling probability to 1.0 mean?

• Trace 0% of the requests

• Trace 100% of the requests

• Trace 50% of the requests

• Trace 10% of the requests

What is the significance of the trace ID in the demonstration?

• It is used for authentication

• It is a placeholder for future use

• It helps in tracing requests across multiple microservices

• It identifies the server

What additional benefit is expected when connecting all microservices to the tracing server?

• Increased security

• Enhanced tracing capabilities across services

• Reduced server load

• Improved user interface